Water softening

… cost savings and a longer service life for your household appliances.

Higher energy consumption due to deposits on the heating elements of the devices. This leads to a higher energy requirement for the devices. 1 mm of deposits can mean up to 10% more energy requirements.

Products for water softening



Model Shortcode Type Flow rate Features
NH-1 Combination System NH-1 Nitrate filtering
Anti-lime scale
2,4 m³/h
nach DIN 19636
Nitrate filtrationand anti-lime scale till max. 30°C
LEX plus 10 connect SLP-* Anti-lime scale 2,1 m3/h Full automatic anti-limescale units –
Ion exchange process
LEX plus SL SLPSL Anti-lime scale 2,1 m3/h Full automatic anti-limescale units – with leak control

The benefits of water softening

1. Cost-saving

Dissolved lime adheres especially to hot water pipes and household devices operated with warm water such as dishwashers, coffee machines, and washing machines etc. Higher energy requirement due to deposits on the heating elements in the devices. This leads to higher energy requirement in the devices. Deposits only 1 mm in size can already lead to up to a 10% higher energy requirement.

2. Avoidance of pipe and water damage

Limescale deposits slowly lead to pipes becoming blocked. Subsequently, this results in high costs for replacing or clearing the pipes, which can be avoided by using a softening system.

3. Effect on skin, hair and laundry surfaces

Enjoy soft hands, shining hair and soft laundry. After softening, your showers, glass surfaces, bathtubs and sinks will be free from those limescale marks which are so difficult to remove. You will save on detergent and have cleaner clothes which will also better retain their softness and bright colors.

How to create limescale protection

Prime Inventions offers two limescale protection solutions with essentially two different operating principles. The so-called ion exchange process to soften water The Kalko Innova procedure which, via a special and long-lasting granulate, builds up a natural lime protection

Ion exchange procedure

This has been a tried-and-tested water-softening process for decades. And this is how it works: Normal tap water contains so-called hardness formers such as calcium (Ca2+)- and magnesium (Mg2+)-, which are responsible for the hard water. In the softening system, these hardness builders, which are present in ion form, are exchanged for harmless sodium ions (Na+) while the water flows over the ion exchange resin beads (inside the system). However, the exchange capacity of the ion exchange filling in the device for the hardeners is limited. After a certain amount of water has flowed through, the ion exchange resin is full and must be freed again, regenerated. The regeneration takes place with simple common salt which is dissolved as brine in the device. Our softening systems regularly carry out regeneration automatically. That means you don’t have to worry about it. Only the refilling of salt tablets, so-called broxettes, every 3 months is necessary, which can be done in a very short time.